Phone Bell

The noisebridge phone bell gets an old phone to ring by a motor turning between the line that rings the bell.

For this reason, the motor needs to be uneven so the line can ring back and forth.

The whole thing is driven by a 12 volt power supply, and connected with a simple switch that transforms into a switch when *pressed*.

When the switch is pressed, the motor will turn, and all being well, the bells will ring like an old telephone.

For best results working on this listen to the Lofi Loft mix https://www.youtube.com/watch?v=uJv3YCk9wD4&list=RDCLAK5uy_kb7EBi6y3GrtJri4_ZH56Ms786DFEimbM&start_radio=1

Or maybe Call Me by Blondie

For starters see this boss schematic:

The positive lead goes direct from power to the motor. The negative lead runs from power to the switch, and then from the switch back to the motor. The motor turns, and the bell rings.

This is the motor with nothing on the axel. At this point, the motor will not ring the bell.

Troubleshooting: If the motor just buzzes and the door doesn't ring, then more tape needs to be applied to the end of the motor to make the bells ring.